EP0865818A1 - Plate-type reactor for catalytic reaction - Google Patents

Plate-type reactor for catalytic reaction Download PDF

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Publication number
EP0865818A1
EP0865818A1 EP98400504A EP98400504A EP0865818A1 EP 0865818 A1 EP0865818 A1 EP 0865818A1 EP 98400504 A EP98400504 A EP 98400504A EP 98400504 A EP98400504 A EP 98400504A EP 0865818 A1 EP0865818 A1 EP 0865818A1
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EP
European Patent Office
Prior art keywords
fluid
circuit
catalytic reactor
main
collector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98400504A
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German (de)
French (fr)
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EP0865818B1 (en
Inventor
Christine Girod
Dominique Sabin
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Alfa Laval Packinox SAS
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Packinox SA
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Publication of EP0865818A1 publication Critical patent/EP0865818A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0285—Heating or cooling the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/248—Reactors comprising multiple separated flow channels
    • B01J19/249—Plate-type reactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0278—Feeding reactive fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00309—Controlling the temperature by indirect heat exchange with two or more reactions in heat exchange with each other, such as an endothermic reaction in heat exchange with an exothermic reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/24—Stationary reactors without moving elements inside
    • B01J2219/2401—Reactors comprising multiple separate flow channels
    • B01J2219/245—Plate-type reactors
    • B01J2219/2451—Geometry of the reactor
    • B01J2219/2453—Plates arranged in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/24—Stationary reactors without moving elements inside
    • B01J2219/2401—Reactors comprising multiple separate flow channels
    • B01J2219/245—Plate-type reactors
    • B01J2219/2469—Feeding means
    • B01J2219/247—Feeding means for the reactants

Definitions

  • the subject of the present invention is a catalytic reactor, of the type comprising a beam of heat exchange plates between fluids, one of which is made up of several components with risks, especially explosion when mixed.
  • reactors have been used catalytic formed of a multitude of tubes arranged in a grille.
  • the tubes are filled with a catalyst and the main fluid composed of air and ortho-xylene flows inside these tubes, while the secondary fluid circulates in the grille.
  • the catalytic reactor is fitted with a safety valve.
  • the object of the invention is to avoid these disadvantages by proposing a catalytic reactor with plates to increase the concentration of one components of the main fluid without any risk explosion and therefore increase so the overall performance of the installation.
  • the subject of the invention is therefore a reactor catalytic, of the type comprising a bundle of plates heat exchange delimiting a first circuit having at least one entry and exit area a main fluid formed by at least two components and a second circuit comprising at least one zone inlet and outlet of a secondary fluid, main fluid inlet and outlet means and means for admitting and discharging the fluid secondary, characterized in that the means main fluid intake in the first circuit are formed, on the one hand, by at least one collector filled with chemically neutral particles and covering said entry area and, on the other hand, by at least one injection rail for each component of the fluid main, spanning the entire length of the collector and comprising at least one row longitudinal of openings opening into the manifold and directed to said entrance area.
  • Fig. 1 there is shown schematically a bundle of heat exchange plates 1 between two fluids, a main fluid A and a secondary fluid B for a catalytic reactor.
  • the main fluid A is formed of two components A1 and A2 presenting explosion risks when mixed under certain conditions of proportion, pressure and temperature.
  • this main fluid can be made up of more than two components.
  • the bundle of plates 1 consists of a stack of 2 thin and parallel metal plates to each other.
  • Each plate 2 consists of a sheet fine, usually made of stainless steel or any other sufficiently ductile material.
  • Each plate 2 has edges longitudinal and transverse smooth surfaces and a central part provided with undulations not shown.
  • the plates 2 define between them intervals, every second interval forms a first longitudinal circuit for the main fluid A and the other intervals form a second circuit b longitudinal for secondary fluid B, said circuits a and b extending over the entire length of the bundle of plates 1 and over the entire surface of plates 2.
  • Circuits a and b are independent.
  • the circulation of the main fluid A and secondary fluid B in the circuits correspondents a and b is co-current, i.e. that fluids A and B flow in the same direction in the plate bundle circuits 1.
  • the bundle of plates 1 comprises, at one from its ends, an inlet zone 5a for the fluid main A and an inlet area 5b for the fluid secondary B and, at the other end, a zone outlet 6a for the main fluid A and a zone of outlet 6b for secondary fluid B.
  • the openings of an interval on two of circuit b are closed by organs shutter 4 in the entry and exit areas, 5a and 6a respectively, and the openings of the others intervals forming circuit a are closed by shutters 4 in the entry and exit areas output, respectively 5b and 6b.
  • the distribution of free openings and closed openings depicted on one of the ends of the plate bundle 1 in FIG. 1 is identical on the other end of the plate bundle 1 so as to form two independent circuits.
  • the shutter members 4 are formed, by example, by tabs welded on the edges of 2 corresponding plates or by folded edges plates 2 and whose free ends are welded together.
  • the catalytic reactor also includes means of admission and evacuation of the fluid main A in the first circuit a and means secondary fluid B inlet and outlet in the second circuit b. These means of admission and are reported to the entry areas and outlet of the corresponding fluid from the beam of plates 1.
  • a in the first circuit a are formed by one. manifold 10 comprising a central wall 10a and two side walls 10b.
  • This collector 10 covers the entry area 5a of the first circuit a and is filled with particles chemically neutral 8.
  • the entry area 5a is covered with a grid, not represented.
  • the means of admission of the main fluid A also include a first injection rail 11a for component A1 of the fluid main A and a second injection rail 11b for the other component A2 of this main fluid A.
  • Injection manifolds 11a and 11b extend over the entire length of the collector 10 and are each connected to a conduit 12a and 12b supply of the corresponding component of the fluid principal A.
  • each injection rail 11a and 11b has at least one longitudinal row of holes 13 opening into the collector 10 and directed towards the entry zone 5a of the first circuit a.
  • the injection ramps 11a and 11b are formed by tubes of the same diameter or diameters different depending on the nature of the component to be injected into the collector 10.
  • the orifices 13 are distributed according to generators and are of calibrated dimensions can vary in size and spacing compared to others.
  • the injection ramps 11a and 11b are arranged at the periphery of the manifold 10.
  • injection ramps 11a and 11b are fixed for example by welding on the wall central 10a of the collector 10 so that the orifices 13 open out inside the manifold 10.
  • the injection ramps 11a and 11b are arranged inside the collector 10 and in this case these injection ramps 11a and 11b are fixed on the side walls 10b of said manifold 10.
  • injection ramps 11a and 11b are fixed on the side walls 10b of the collector 10 for example by welding or by tight force fitting.
  • the means main fluid evacuation A from the first circuit a, after crossing the bundle of plates 1, are formed by a collector 14 covering the outlet zone 6a of said main fluid A.
  • This collector 14 is connected to a conduit 15 outlet of this main fluid A.
  • the means of admission of the secondary fluid B in the second circuit b are formed by a collector 16 covering the entry area 5b and connected to a conduit 17 for supplying the secondary fluid B.
  • the means of evacuation of the fluid secondary B after passing through the second circuit b of the bundle of plates 1, are formed by a collector 18 covering the exit area 6b and connected to a conduit 19 outlet of said secondary fluid B.
  • this secondary fluid B enters through the conduit 19 in the manifold 18, then crosses the bundle of plates 1 through the second circuit b and out via the manifold 16 and the conduit 17.
  • a bundle of large plates 1 comprising two circuits a and b.
  • the first circuit has several entry zones 5a and several exit zones 6a for the main fluid A and the second circuit b comprises several entry zones 5b and several entry zones outlet 6b for secondary fluid B.
  • Entry zones 5a and 5b and exit zones 6a and 6b are alternated with respect to each other.
  • the entry zones 5a and 5b and output 6a and 6b are alternated by relative to the others and the fluid outlet zones 6a main A and fluid outlet zones 6b secondary B are inverted with respect to the zones inlet 5a of said main fluid A and to the zones inlet 5b of said secondary fluid B.
  • the means for admitting the fluid main A in the first circuit a are formed, for each entry area 5a, on the one hand, by a collector 10 filled with chemically neutral particles 8 and covering the corresponding entry area 5a and, on the other hand, by two injection ramps 11a and 11b for each component of the main fluid A.
  • the ramps injection 11a and 11b extend over the entire length of manifold 10 and have at least one row longitudinal of orifices 13 opening into the collector 10 and directed to the entry area 5a corresponding.
  • Means of evacuation of the main fluid A after its passage in the first circuit has bundle of plates 1 are formed by collectors 14 each covering an exit area 6a of the first circuit a.
  • Each collector 14 is connected to a main fluid outlet duct A.
  • the means of admission of the secondary fluid B in the second circuit b of the plate bundle 1 are formed, for each entry zone 5b, by a collector 16 covering the entry area 5b corresponding to said secondary fluid B.
  • Each collector 16 is connected to a conduit 17 for supplying this secondary fluid B.
  • the means of evacuation of the fluid secondary B after passing through the second circuit b of the bundle of plates 1 are formed, for each outlet zone 6b, by a collector 18 covering the corresponding outlet zone 6b of said fluid secondary B.
  • Each collector 18 is connected to a conduit 19 for evacuating this secondary fluid B.
  • circulation fluids A and B in plate bundle 1 can also be against the grain.
  • the main fluid A enters through collectors 10 and out through collectors 14 and the secondary fluid B enters via the collectors 18 and exits through the collectors 16.
  • the means for admitting the fluid main A in the first circuit a of the beam of plates 1 and the means for discharging this fluid main A, after passing through said circuit a are identical to those of the previous embodiment shown in Fig. 6.
  • the means for admitting the secondary fluid B are formed by a collector 20 covering all of the inlet zones 5b of said secondary fluid B.
  • This collector 20 is connected to a conduit 21 for supplying the secondary fluid B.
  • the means of evacuation of the fluid secondary B, after passing through the second circuit b of the bundle of plates 1, are formed by a collector 22 covering all the exit zones 6b of this secondary fluid B.
  • This collector 22 is connected to a conduit 23 for discharging this secondary fluid B.
  • the means for admitting the fluid secondary B in circuit b can be formed by a collector covering all of the entry zones 5b and the means for discharging the secondary fluid B can be trained by several collectors covering each an outlet zone 6b of the secondary fluid B or Conversely.
  • the bundle of plates 1 has at least one collector on one of its faces so as to cover the entire face corresponding of said bundle of plates 1 and the second face adjacent and perpendicular to the first face has at least one collector so as to cover the entire second corresponding face of said bundle of plates 1.
  • the main fluid intake manifolds A are fitted with injection rails arranged in such a way these injection ramps are perpendicular to the or at the entrance areas.
  • the injection ramps 11a and 11b can each be made in the form of a tube, for example cylindrical. These tubes can be the same diameter or different diameter.
  • the two injection ramps 11a and 11b are arranged in the same plane preferably perpendicular to the corresponding entry area.
  • the injection manifolds can be arranged in different planes forming angles to each other.
  • the orifices 13 of the injection ramps 11a and llb are calibrated and distributed so as to obtain a homogeneous distribution of fluid components main in the corresponding collector 10.
  • the orifices 13 may have different dimensions and spacing distribution of these orifices 13 over the entire length of the ramps injection may vary.
  • Fluid intake manifolds 10 main A are densely filled with particles 8 small, chemically neutral solids. Each entry area 5a is covered with a grid, not shown.
  • the catalytic reactor according to the invention can work with a stronger concentration of ortho-xylene in the air without running no risk of explosion which increases significantly the overall performance of the installation.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The invention concerns a catalytic converter comprising a block of plates (1) defining two circuits each comprising at least an input (5a) and an output (6a) zone for a main fluid and an input (5b) and an output (6b) zone for a secondary fluid. The catalytic converter comprises intake means for the main fluid formed by at least one collector (10) filled with chemically neutral particles (8) and covering the corresponding input zone (5a) and by at least an injection pipe (11a, 11b) extending over the whole length of the collector (10) and comprising at least a row of longitudinal orifices opening into the collector (10) and directed towards the corresponding input zone (5a).

Description

La présente invention a pour objet un réacteur catalytique, du type comprenant un faisceau de plaques d'échange thermique entre des fluides dont l'un est formé de plusieurs composants présentant des risques, notamment d'explosion lorsqu'ils sont mélangés.The subject of the present invention is a catalytic reactor, of the type comprising a beam of heat exchange plates between fluids, one of which is made up of several components with risks, especially explosion when mixed.

En effet, on sait que pour la production de certains fluides, comme par exemple de l'anhydride phtalique, tout d'abord on mélange de l'air et l'ortho-xylène pour réaliser un fluide principal, puis on fait circuler ce fluide principal dans un réacteur catalytique en présence d'un fluide secondaire pour réaliser un échange thermique entre ces fluides.Indeed, we know that for production certain fluids, such as anhydride phthalic, first of all we mix air and ortho-xylene to make a main fluid, then we circulate this main fluid in a reactor catalytic in the presence of a secondary fluid for perform a heat exchange between these fluids.

Or, le mélange d'air et d'ortho-xylène génère une explosion sous certaines conditions de proportion, de pression et de température.Now, the mixture of air and ortho-xylene generates an explosion under certain conditions of proportion, pressure and temperature.

Jusqu'à présent, on utilise des réacteurs catalytique formés d'une multitude de tubes disposés dans une calandre.So far, reactors have been used catalytic formed of a multitude of tubes arranged in a grille.

Les tubes sont remplis d'un catalyseur et le fluide principal composé d'air et d'ortho-xylène circule à l'intérieur de ces tubes, tandis que le fluide secondaire circule dans la calandre.The tubes are filled with a catalyst and the main fluid composed of air and ortho-xylene flows inside these tubes, while the secondary fluid circulates in the grille.

Pour éviter le risque d'explosion, la proportion d'ortho-xylène dans l'air est réduite pour ne pas atteindre les conditions d'explosion si bien que le rendement de la réaction chimique est limité.To avoid the risk of explosion, the proportion of ortho-xylene in the air is reduced for fail to reach the explosion conditions so well that the yield of the chemical reaction is limited.

Néanmoins, le réacteur catalytique est équipé d'une soupape de sécurité.However, the catalytic reactor is fitted with a safety valve.

C'est également le cas pour d'autres fluides comme par exemple le toluène et l'air.This is also the case for others fluids such as toluene and air.

L'invention a pour but d'éviter ces inconvénients en proposant un réacteur catalytique à plaques permettant d'augmenter la concentration de l'un des composants du fluide principal sans aucun risque d'explosion et par conséquent, d'augmenter de façon significative le rendement général de l'installation.The object of the invention is to avoid these disadvantages by proposing a catalytic reactor with plates to increase the concentration of one components of the main fluid without any risk explosion and therefore increase so the overall performance of the installation.

L'invention a donc pour objet un réacteur catalytique, du type comprenant un faisceau de plaques d'échange thermique délimitant un premier circuit comportant au moins une zone d'entrée et de sortie d'un fluide principal formé d'au moins deux composants et un second circuit comportant au moins une zone d'entrée et de sortie d'un fluide secondaire, des moyens d'admission et d'évacuation du fluide principal et des moyens d'admission et d'évacuation du fluide secondaire, caractérisé en ce que les moyens d'admission du fluide principal dans le premier circuit sont formés, d'une part, par au moins un collecteur rempli de particules chimiquement neutres et couvrant ladite zone d'entrée et, d'autre part, par au moins une rampe d'injection pour chaque composant du fluide principal, s'étendant sur toute la longueur du collecteur et comportant au moins une rangée longitudinale d'orifices débouchant dans le collecteur et dirigés vers ladite zone d'entrée.The subject of the invention is therefore a reactor catalytic, of the type comprising a bundle of plates heat exchange delimiting a first circuit having at least one entry and exit area a main fluid formed by at least two components and a second circuit comprising at least one zone inlet and outlet of a secondary fluid, main fluid inlet and outlet means and means for admitting and discharging the fluid secondary, characterized in that the means main fluid intake in the first circuit are formed, on the one hand, by at least one collector filled with chemically neutral particles and covering said entry area and, on the other hand, by at least one injection rail for each component of the fluid main, spanning the entire length of the collector and comprising at least one row longitudinal of openings opening into the manifold and directed to said entrance area.

Selon d'autres caractéristiques de l'invention :

  • les moyens d'évacuation du fluide principal du premier circuit sont formés par au moins un collecteur couvrant ladite zone de sortie dudit fluide principal,
  • la circulation du fluide principal et du fluide secondaire dans les circuits correspondants est co-courante, à contre-courant ou à courants croisés,
  • le premier circuit comporte plusieurs zones d'entrée et de sortie du fluide principal et le second circuit comporte plusieurs zones d'entrée et de sortie du fluide secondaire alternées respectivement avec lesdites zones d'entrée et de sortie du fluide principal,
  • le premier circuit comporte plusieurs zones d'entrée et de sortie du fluide principal et le second circuit comporte plusieurs zones d'entrée et de sortie du fluide secondaire alternées respectivement avec les zones d'entrée et de sortie du fluide principal, les zones de sortie du fluide principal et les zones de sortie du fluide secondaire étant inversées par rapport aux zones d'entrée dudit fluide principal et aux zones d'entrée dudit fluide secondaire,
  • les moyens d'admission du fluide principal dans le premier circuit sont formés, pour chaque zone d'entrée, d'une part, par un collecteur rempli de particules chimiquement neutres et couvrant la zone d'entrée correspondante et, d'autre part, par au moins une rampe d'injection pour chaque composant du fluide principal s'étendant sur toute la longueur du collecteur et comportant au moins une rangée longitudinale d'orifices débouchant dans le collecteur et dirigés vers ladite zone d'entrée,
  • les moyens d'évacuation du fluide principal sont formés par un collecteur couvrant chaque zone de sortie du premier circuit,
  • les moyens d'admission du fluide secondaire dans le second circuit sont formés, pour chaque zone d'entrée, par un collecteur couvrant la zone d'entrée correspondante ou par un collecteur couvrant l'ensemble des zones d'entrée dudit fluide secondaire,
  • les moyens d'évacuation du fluide secondaire du second circuit sont formés, pour chaque zone de sortie, par un collecteur couvrant la zone de sortie correspondante ou par un collecteur couvrant l'ensemble des zones de sortie dudit fluide secondaire,
  • les rampes d'injection sont disposées à l'intérieur du collecteur correspondant ou à la périphérique dudit collecteur,
  • les rampes d'injection sont formées par des tubes de même diamètre ou de diamètres différents,
  • les orifices des rampes d'injection sont de même diamètre ou de diamètres différents,
  • l'espacement des orifices sur les rampes d'injection est constant ou variable.
According to other characteristics of the invention:
  • the means for discharging the main fluid from the first circuit are formed by at least one collector covering said outlet zone of said main fluid,
  • the circulation of the main fluid and the secondary fluid in the corresponding circuits is co-current, counter-current or cross-current,
  • the first circuit comprises several zones for entering and leaving the main fluid and the second circuit comprises several zones for entering and leaving the secondary fluid alternating respectively with said zones for entering and leaving the main fluid,
  • the first circuit comprises several zones of entry and exit of the principal fluid and the second circuit comprises several zones of entry and exit of the secondary fluid alternated respectively with the zones of entry and exit of the principal fluid, the zones of exit of the main fluid and the exit areas of the secondary fluid being inverted with respect to the entry areas of said main fluid and to the entry areas of said secondary fluid,
  • the means for admitting the main fluid into the first circuit are formed, for each inlet zone, on the one hand, by a collector filled with chemically neutral particles and covering the corresponding inlet zone and, on the other hand, by at least one injection manifold for each component of the main fluid extending over the entire length of the manifold and comprising at least one longitudinal row of orifices opening into the manifold and directed towards said inlet zone,
  • the means for discharging the main fluid are formed by a collector covering each outlet zone of the first circuit,
  • the means for admitting the secondary fluid into the second circuit are formed, for each inlet area, by a collector covering the corresponding inlet area or by a manifold covering all of the inlet areas of said secondary fluid,
  • the means for discharging the secondary fluid from the second circuit are formed, for each outlet zone, by a collector covering the corresponding outlet zone or by a collector covering all the outlet zones of said secondary fluid,
  • the injection ramps are arranged inside the corresponding collector or at the periphery of said collector,
  • the injection manifolds are formed by tubes of the same diameter or of different diameters,
  • the orifices of the injection manifolds are of the same diameter or of different diameters,
  • the spacing of the orifices on the injection rails is constant or variable.

Les caractéristiques et avantages de l'invention apparaítront au cours de la description qui va suivre, donnée à titre d'exemple et faite en référence aux dessins annexés, sur lesquels :

  • la Fig. 1 est une vue schématique en perspective d'un mode de réalisation du faisceau de plaques d'un réacteur catalytique conforme à l'invention,
  • la Fig. 2 est une vue schématique en perspective d'un réacteur catalytique conforme à l'invention,
  • la Fig.3 est une vue schématique en coupe transversale des moyens d'alimentation en fluide principal du réacteur catalytique,
  • la Fig. 4 est une vue schématique en perspective d'une variante des moyens d'alimentation en fluide principal du réacteur catalytique,
  • la Fig. 5 est une vue schématique en perspective d'une rampe d'injection,
  • la Fig. 6 est une vue en élévation d'un second mode de réalisation du réacteur catalytique conforme à l'invention,
  • la Fig. 7 est une vue en élévation d'un troisième mode de réalisation du réacteur catalytique conforme à l'invention.
The characteristics and advantages of the invention will become apparent during the description which follows, given by way of example and made with reference to the appended drawings, in which:
  • Fig. 1 is a schematic perspective view of an embodiment of the plate bundle of a catalytic reactor according to the invention,
  • Fig. 2 is a schematic perspective view of a catalytic reactor according to the invention,
  • Fig.3 is a schematic cross-sectional view of the main fluid supply means of the catalytic reactor,
  • Fig. 4 is a schematic perspective view of a variant of the means for supplying the main fluid to the catalytic reactor,
  • Fig. 5 is a schematic perspective view of an injection rail,
  • Fig. 6 is an elevational view of a second embodiment of the catalytic reactor according to the invention,
  • Fig. 7 is an elevational view of a third embodiment of the catalytic reactor according to the invention.

Sur la Fig. 1, on a représenté schématiquement un faisceau de plaques 1 d'échange thermique entre deux fluides, un fluide principal A et un fluide secondaire B pour un réacteur catalytique.In Fig. 1, there is shown schematically a bundle of heat exchange plates 1 between two fluids, a main fluid A and a secondary fluid B for a catalytic reactor.

Le fluide principal A est formé de deux composants A1 et A2 présentant des risques d'explosion lorsqu'ils sont mélangés sous certaines conditions de proportion, de pression et de température.The main fluid A is formed of two components A1 and A2 presenting explosion risks when mixed under certain conditions of proportion, pressure and temperature.

C'est le cas par exemple de l'air et de l'ortho-xylène pour la production d'anhydride phtalique ou de l'air et du toluène.This is the case, for example, of air and ortho-xylene for the production of anhydride phthalic or air and toluene.

Dans un but de simplification, la description qui suit sera limitée à un fluide principal formé de deux composants, ce fluide principal pouvant être formé de plus de deux composants.For the sake of simplification, the description which follows will be limited to a main fluid formed of two components, this main fluid can be made up of more than two components.

Ainsi que représenté à la Fig. 1, le faisceau de plaques 1 se compose d'un empilement de plaques 2 métalliques de faible épaisseur et parallèles les unes aux autres.As shown in FIG. 1, the bundle of plates 1 consists of a stack of 2 thin and parallel metal plates to each other.

Chaque plaque 2 est constituée d'une tôle fine, le plus souvent en acier inoxydable ou tout autre matériau suffisamment ductile.Each plate 2 consists of a sheet fine, usually made of stainless steel or any other sufficiently ductile material.

Chaque plaque 2 comporte des bords longitudinaux et transversaux à surface lisse et une partie centrale munie d'ondulations non représentées.Each plate 2 has edges longitudinal and transverse smooth surfaces and a central part provided with undulations not shown.

Les plaques 2 définissent entre elles des intervalles, un intervalle sur deux forme un premier circuit a longitudinal pour le fluide principal A et les autres intervalles forment un second circuit b longitudinal pour le fluide secondaire B, lesdits circuits a et b s'étendant sur toute la longueur du faisceau de plaques 1 et sur toute la surface des plaques 2.The plates 2 define between them intervals, every second interval forms a first longitudinal circuit for the main fluid A and the other intervals form a second circuit b longitudinal for secondary fluid B, said circuits a and b extending over the entire length of the bundle of plates 1 and over the entire surface of plates 2.

Les circuits a et b sont indépendants. Circuits a and b are independent.

Dans l'exemple de réalisation représenté sur les figures, la circulation du fluide principal A et du fluide secondaire B dans les circuits correspondants a et b est co-courante, c'est à dire que les fluides A et B circulent dans le même sens dans les circuits du faisceau de plaques 1.In the embodiment shown in the figures, the circulation of the main fluid A and secondary fluid B in the circuits correspondents a and b is co-current, i.e. that fluids A and B flow in the same direction in the plate bundle circuits 1.

Mais, la circulation du fluide principal A et du fluide secondaire B, dans les circuits a et b peut être à contre-courant ou à courants croisés.But, the circulation of the main fluid A and secondary fluid B, in circuits a and b can be against the current or cross currents.

Dans l'exemple de réalisation représenté à la Fig. 1, le faisceau de plaques 1 comporte, à l'une de ses extrémités, une zone d'entrée 5a pour le fluide principal A et une zone d'entrée 5b pour le fluide secondaire B et, à l'autre de ses extrémités, une zone de sortie 6a pour le fluide principal A et une zone de sortie 6b pour le fluide secondaire B.In the embodiment shown in Fig. 1, the bundle of plates 1 comprises, at one from its ends, an inlet zone 5a for the fluid main A and an inlet area 5b for the fluid secondary B and, at the other end, a zone outlet 6a for the main fluid A and a zone of outlet 6b for secondary fluid B.

Pour cela, les ouvertures d'un intervalle sur deux du circuit b sont fermées par des organes d'obturation 4 dans les zones d'entrée et de sortie, respectivement 5a et 6a, et les ouvertures des autres intervalles formant le circuit a sont fermés par des organes d'obturation 4 dans les zones d'entrée et de sortie, respectivement 5b et 6b.For this, the openings of an interval on two of circuit b are closed by organs shutter 4 in the entry and exit areas, 5a and 6a respectively, and the openings of the others intervals forming circuit a are closed by shutters 4 in the entry and exit areas output, respectively 5b and 6b.

La répartition des ouvertures libres et des ouvertures fermées représentées sur l'une des extrémités du faisceau de plaques 1 à la Fig. 1 est identique sur l'autre extrémité du faisceau de plaques 1 de façon à former deux circuits indépendants.The distribution of free openings and closed openings depicted on one of the ends of the plate bundle 1 in FIG. 1 is identical on the other end of the plate bundle 1 so as to form two independent circuits.

Les organes d'obturation 4 sont formés, par exemple, par des languettes soudées sur les bords des plaques 2 correspondantes ou par des rebords rabattus des plaques 2 et dont les extrémités libres sont soudées entre elles.The shutter members 4 are formed, by example, by tabs welded on the edges of 2 corresponding plates or by folded edges plates 2 and whose free ends are welded together.

Le réacteur catalytique comporte également des moyens d'admission et d'évacuation du fluide principal A dans le premier circuit a et des moyens d'admission et d'évacuation du fluide secondaire B dans le second circuit b. Ces moyens d'admission et d'évacuation sont rapportés sur les zones d'entrée et de sortie du fluide correspondant du faisceau de plaques 1.The catalytic reactor also includes means of admission and evacuation of the fluid main A in the first circuit a and means secondary fluid B inlet and outlet in the second circuit b. These means of admission and are reported to the entry areas and outlet of the corresponding fluid from the beam of plates 1.

En se reportant à la Fig.2, on va maintenant décrire les moyens d'admission et d'évacuation des fluides A et B dans le cas où le faisceau de plaques est pourvu d'une zone d'entrée 5a et d'une zone de sortie 6a pour le fluide principal A et d'une zone d'entrée 5b et d'une zone de sortie 6b pour le fluide secondaire B.Referring to Fig. 2, we will now describe the means of admission and evacuation of fluids A and B in case the plate bundle is provided with an entry area 5a and an outlet zone 6a for the main fluid A and an entry area 5b and an exit area 6b for secondary fluid B.

Les moyens d'admission du fluide principal. A dans le premier circuit a sont formés par un. collecteur 10 comportant une paroi centrale 10a et deux parois latérales 10b.The main fluid intake means. A in the first circuit a are formed by one. manifold 10 comprising a central wall 10a and two side walls 10b.

Ce collecteur 10 couvre la zone d'entrée 5a du premier circuit a et est rempli de particules chimiquement neutre 8.This collector 10 covers the entry area 5a of the first circuit a and is filled with particles chemically neutral 8.

Pour éviter que les particules 8 se dispersent dans les canaux formant le circuit a, la zone d'entrée 5a est recouverte d'une grille, non représentée.To prevent particles 8 from getting disperse in the channels forming circuit a, the entry area 5a is covered with a grid, not represented.

D'autre part, les moyens d'admission du fluide principal A comprennent également une première rampe d'injection 11a pour le composant A1 du fluide principal A et une seconde rampe d'injection 11b pour l'autre composant A2 de ce fluide principal A.On the other hand, the means of admission of the main fluid A also include a first injection rail 11a for component A1 of the fluid main A and a second injection rail 11b for the other component A2 of this main fluid A.

Les rampes d'injection 11a et 11b s'étendent sur toute la longueur du collecteur 10 et sont reliées chacune à un conduit 12a et 12b d'alimentation du composant correspondant du fluide principal A.Injection manifolds 11a and 11b extend over the entire length of the collector 10 and are each connected to a conduit 12a and 12b supply of the corresponding component of the fluid principal A.

Ainsi que représenté à la Fig. 5, chaque rampe d'injection 11a et 11b comporte au moins une rangée longitudinale d'orifices 13 débouchant dans le collecteur 10 et dirigés vers la zone d'entrée 5a du premier circuit a.As shown in FIG. 5, each injection rail 11a and 11b has at least one longitudinal row of holes 13 opening into the collector 10 and directed towards the entry zone 5a of the first circuit a.

Les rampes d'injection 11a et 11b sont formées par des tubes de même diamètre ou de diamètres différents selon la nature du composant à injecter dans le collecteur 10.The injection ramps 11a and 11b are formed by tubes of the same diameter or diameters different depending on the nature of the component to be injected into the collector 10.

D'autre part, les orifices 13 sont répartis selon des génératrices et sont de dimensions calibrées pouvant varier en dimension et en espacement les uns par rapport aux autres.On the other hand, the orifices 13 are distributed according to generators and are of calibrated dimensions can vary in size and spacing compared to others.

Selon un premier mode de réalisation représenté à la Fig. 3, les rampes d'injection 11a et 11b sont disposées à la périphérie du collecteur 10.According to a first embodiment shown in Fig. 3, the injection ramps 11a and 11b are arranged at the periphery of the manifold 10.

Dans ce cas, les rampes d'injection 11a et 11b sont fixées par exemple par soudage sur la paroi centrale 10a du collecteur 10 de telle manière que les orifices 13 débouchent à l'intérieur du collecteur 10.In this case, the injection ramps 11a and 11b are fixed for example by welding on the wall central 10a of the collector 10 so that the orifices 13 open out inside the manifold 10.

Selon un second mode de réalisation représenté à la Fig.4, les rampes d'injection 11a et 11b sont disposées à l'intérieur du collecteur 10 et dans ce cas ces rampes d'injection 11a et 11b sont fixées sur les parois latérales 10b dudit collecteur 10.According to a second embodiment shown in Fig. 4, the injection ramps 11a and 11b are arranged inside the collector 10 and in this case these injection ramps 11a and 11b are fixed on the side walls 10b of said manifold 10.

Pour cela, les rampes d'injection 11a et 11b sont fixées sur les parois latérales 10b du collecteur 10 par exemple par soudage ou par emmanchement à force étanche.For this, the injection ramps 11a and 11b are fixed on the side walls 10b of the collector 10 for example by welding or by tight force fitting.

Comme représenté à la Fig. 2, les moyens d'évacuation du fluide principal A du premier circuit a, après sa traversée du faisceau de plaques 1, sont formés par un collecteur 14 couvrant la zone de sortie 6a dudit fluide principal A.As shown in Fig. 2, the means main fluid evacuation A from the first circuit a, after crossing the bundle of plates 1, are formed by a collector 14 covering the outlet zone 6a of said main fluid A.

Ce collecteur 14 est relié à un conduit 15 de sortie de ce fluide principal A.This collector 14 is connected to a conduit 15 outlet of this main fluid A.

Les moyens d'admission du fluide secondaire B dans le second circuit b sont formés par un collecteur 16 couvrant la zone d'entrée 5b et relié à un conduit 17 d'alimentation du fluide secondaire B.The means of admission of the secondary fluid B in the second circuit b are formed by a collector 16 covering the entry area 5b and connected to a conduit 17 for supplying the secondary fluid B.

Les moyens d'évacuation du fluide secondaire B après son passage dans le second circuit b du faisceau de plaques 1, sont formés par un collecteur 18 couvrant la zone de sortie 6b et relié à un conduit 19 de sortie dudit fluide secondaire B.The means of evacuation of the fluid secondary B after passing through the second circuit b of the bundle of plates 1, are formed by a collector 18 covering the exit area 6b and connected to a conduit 19 outlet of said secondary fluid B.

Dans le cas où la circulation du fluide secondaire B est à contre-courant par rapport au fluide principal A, ce fluide secondaire B entre par le conduit 19 dans le collecteur 18, puis traverse le faisceau de plaques 1 par le second circuit b et sort par le collecteur 16 et le conduit 17.In the case where the circulation of the fluid secondary B is against the current compared to the main fluid A, this secondary fluid B enters through the conduit 19 in the manifold 18, then crosses the bundle of plates 1 through the second circuit b and out via the manifold 16 and the conduit 17.

Sur les Figs. 6 et 7, on a représenté un faisceau de plaques 1 de grandes dimensions comportant deux circuits a et b.In Figs. 6 and 7, a bundle of large plates 1 comprising two circuits a and b.

Le premier circuit a comporte plusieurs zones d'entrée 5a et plusieurs zones de sortie 6a pour le fluide principal A et le second circuit b comporte plusieurs zones d'entrée 5b et plusieurs zones de sortie 6b pour le fluide secondaire B.The first circuit has several entry zones 5a and several exit zones 6a for the main fluid A and the second circuit b comprises several entry zones 5b and several entry zones outlet 6b for secondary fluid B.

Les zones d'entrée 5a et 5b et de sortie 6a et 6b sont alternées les unes par rapport aux autres.Entry zones 5a and 5b and exit zones 6a and 6b are alternated with respect to each other.

Selon une variante, les zones d'entrée 5a et 5b et de sortie 6a et 6b sont alternées les unes par rapport aux autres et les zones de sortie 6a du fluide principal A et les zones de sortie 6b du fluide secondaire B sont inversées par rapport aux zones d'entrée 5a dudit fluide principal A et aux zones d'entrée 5b dudit fluide secondaire B.According to a variant, the entry zones 5a and 5b and output 6a and 6b are alternated by relative to the others and the fluid outlet zones 6a main A and fluid outlet zones 6b secondary B are inverted with respect to the zones inlet 5a of said main fluid A and to the zones inlet 5b of said secondary fluid B.

Ainsi, à une extrémité du faisceau de plaques 1 et par exemple de haut en bas, on a une zone d'entrée 5a du fluide principal A et une zone d'entrée 5b du fluide secondaire B et ainsi de suite et à l'autre extrémité du faisceau de plaques 1 et par exemple de haut en bas, on a une zone de sortie 6b du fluide secondaire B et une zone de sortie 6a du fluide principal et ainsi de suite.So at one end of the beam of plates 1 and for example from top to bottom, we have an area inlet 5a of the main fluid A and an inlet zone 5b of the secondary fluid B and so on and the other end of the bundle of plates 1 and by example from top to bottom, we have an exit zone 6b of the secondary fluid B and an outlet zone 6a of the fluid main and so on.

Selon un premier mode de réalisation représenté à la Fig. 6, les moyens d'admission du fluide principal A dans le premier circuit a sont formés, pour chaque zone d'entrée 5a, d'une part, par un collecteur 10 rempli de particules chimiquement neutres 8 et couvrant la zone d'entrée 5a correspondante et, d'autre part, par deux rampes d'injection 11a et 11b pour chaque composant du fluide principal A.According to a first embodiment shown in Fig. 6, the means for admitting the fluid main A in the first circuit a are formed, for each entry area 5a, on the one hand, by a collector 10 filled with chemically neutral particles 8 and covering the corresponding entry area 5a and, on the other hand, by two injection ramps 11a and 11b for each component of the main fluid A.

Dans ce cas également, les rampes d'injection 11a et 11b s'étendent sur toute la longueur du collecteur 10 et comportent au moins une rangée longitudinale d'orifices 13 débouchant dans le collecteur 10 et dirigés vers la zone d'entrée 5a correspondante.In this case too, the ramps injection 11a and 11b extend over the entire length of manifold 10 and have at least one row longitudinal of orifices 13 opening into the collector 10 and directed to the entry area 5a corresponding.

Les moyens d'évacuation du fluide principal A après son passage dans le premier circuit a du faisceau de plaques 1 sont formés par des collecteurs 14 couvrant chacun une zone de sortie 6a du premier circuit a.Means of evacuation of the main fluid A after its passage in the first circuit has bundle of plates 1 are formed by collectors 14 each covering an exit area 6a of the first circuit a.

Chaque collecteur 14 est relié à un conduit 15 de sortie du fluide principal A.Each collector 14 is connected to a main fluid outlet duct A.

Les moyens d'admission du fluide secondaire B dans le second circuit b du faisceau de plaques 1 sont formés, pour chaque zone d'entrée 5b, par un collecteur 16 couvrant la zone d'entrée 5b correspondante dudit fluide secondaire B. The means of admission of the secondary fluid B in the second circuit b of the plate bundle 1 are formed, for each entry zone 5b, by a collector 16 covering the entry area 5b corresponding to said secondary fluid B.

Chaque collecteur 16 est relié à un conduit 17 d'alimentation de ce fluide secondaire B.Each collector 16 is connected to a conduit 17 for supplying this secondary fluid B.

Les moyens d'évacuation du fluide secondaire B après son passage dans le second circuit b du faisceau de plaques 1 sont formés, pour chaque zone de sortie 6b, par un collecteur 18 couvrant la zone de sortie 6b correspondante dudit fluide secondaire B.The means of evacuation of the fluid secondary B after passing through the second circuit b of the bundle of plates 1 are formed, for each outlet zone 6b, by a collector 18 covering the corresponding outlet zone 6b of said fluid secondary B.

Chaque collecteur 18 est relié à un conduit 19 d'évacuation de ce fluide secondaire B.Each collector 18 is connected to a conduit 19 for evacuating this secondary fluid B.

Pour ce mode de réalisation, la circulation des fluides A et B dans le faisceau de plaques 1 peut également être à contre-courant.For this embodiment, the circulation fluids A and B in plate bundle 1 can also be against the grain.

Dans ce cas, le fluide principal A entre par les collecteurs 10 et sort par les collecteurs 14 et le fluide secondaire B entre par les collecteurs 18 et sort par les collecteurs 16.In this case, the main fluid A enters through collectors 10 and out through collectors 14 and the secondary fluid B enters via the collectors 18 and exits through the collectors 16.

Selon un second mode de réalisation représenté à la Fig. 7, les moyens d'admission du fluide principal A dans le premier circuit a du faisceau de plaques 1 et les moyens d'évacuation de ce fluide principal A, après son passage dans ledit circuit a sont identiques à ceux du précédent mode de réalisation représenté à la Fig. 6.According to a second embodiment shown in Fig. 7, the means for admitting the fluid main A in the first circuit a of the beam of plates 1 and the means for discharging this fluid main A, after passing through said circuit a are identical to those of the previous embodiment shown in Fig. 6.

Par contre, dans ce mode de réalisation, les moyens d'admission du fluide secondaire B sont formés par un collecteur 20 couvrant l'ensemble des zones d'entrée 5b dudit fluide secondaire B.However, in this embodiment, the means for admitting the secondary fluid B are formed by a collector 20 covering all of the inlet zones 5b of said secondary fluid B.

Ce collecteur 20 est raccordé à un conduit 21 d'alimentation du fluide secondaire B.This collector 20 is connected to a conduit 21 for supplying the secondary fluid B.

Les moyens d'évacuation du fluide secondaire B, après son passage dans le second circuit b du faisceau de plaques 1, sont formés par un collecteur 22 couvrant l'ensemble des zones de sortie 6b de ce fluide secondaire B. The means of evacuation of the fluid secondary B, after passing through the second circuit b of the bundle of plates 1, are formed by a collector 22 covering all the exit zones 6b of this secondary fluid B.

Ce collecteur 22 est raccordé à un conduit 23 d'évacuation de ce fluide secondaire B.This collector 22 is connected to a conduit 23 for discharging this secondary fluid B.

Selon un autre mode de réalisation, il est possible de combiner les deux modes de réalisation représentés respectivement aux Figs. 6 et 7.According to another embodiment, it is possible to combine the two embodiments shown respectively in Figs. 6 and 7.

Ainsi, les moyens d'admission du fluide secondaire B dans le circuit b, peuvent être formés par un collecteur couvrant l'ensemble des zones d'entrée 5b et les moyens d'évacuation du fluide secondaire B peuvent être formés par plusieurs collecteurs couvrant chacun une zone de sortie 6b du fluide secondaire B ou inversement.Thus, the means for admitting the fluid secondary B in circuit b, can be formed by a collector covering all of the entry zones 5b and the means for discharging the secondary fluid B can be trained by several collectors covering each an outlet zone 6b of the secondary fluid B or Conversely.

Dans le cas d'une circulation des fluides A et B à courants croisés, le faisceau de plaques 1 comporte sur l'une de ses faces au moins un collecteur de façon à recouvrir l'ensemble de la face correspondante dudit faisceau de plaques 1 et la seconde face adjacente et perpendiculaire à la première face comporte au moins un collecteur de façon à recouvrir l'ensemble de la seconde face correspondante dudit faisceau de plaques 1.In the case of a circulation of fluids A and B with cross currents, the bundle of plates 1 has at least one collector on one of its faces so as to cover the entire face corresponding of said bundle of plates 1 and the second face adjacent and perpendicular to the first face has at least one collector so as to cover the entire second corresponding face of said bundle of plates 1.

Dans ce cas également, le ou les collecteurs d'admission du fluide principal A sont munis de rampes d'injection disposées de telle sorte que ces rampes d'injection soient perpendiculaires à la ou aux zones d'entrée.Also in this case, the main fluid intake manifolds A are fitted with injection rails arranged in such a way these injection ramps are perpendicular to the or at the entrance areas.

Pour l'ensemble des modes de réalisation précédemment décrits, les rampes d'injection 11a et 11b peuvent être réalisées chacune sous la forme d'un tube, par exemple cylindrique. Ces tubes peuvent être de même diamètre ou de diamètre différent.For all of the embodiments previously described, the injection ramps 11a and 11b can each be made in the form of a tube, for example cylindrical. These tubes can be the same diameter or different diameter.

Pour un fluide principal A formé de deux composants, les deux rampes d'injection 11a et 11b sont disposées dans un même plan de préférence perpendiculaire à la zone d'entrée correspondante. For a main fluid A formed of two components, the two injection ramps 11a and 11b are arranged in the same plane preferably perpendicular to the corresponding entry area.

Dans le cas d 'un fluide principal A formé de plus de deux composants, les rampes d'injection peuvent être disposées dans différents plans formant des angles les uns par rapport aux autres.In the case of a main fluid A formed more than two components, the injection manifolds can be arranged in different planes forming angles to each other.

Les orifices 13 des rampes d'injection 11a et llb sont calibrés et répartis de façon à obtenir une distribution homogène des composants du fluide principal dans le collecteur 10 correspondant.The orifices 13 of the injection ramps 11a and llb are calibrated and distributed so as to obtain a homogeneous distribution of fluid components main in the corresponding collector 10.

Les orifices 13 peuvent avoir des dimensions différentes et la répartition en espacement de ces orifices 13 sur toute la longueur des rampes d'injection peut varier.The orifices 13 may have different dimensions and spacing distribution of these orifices 13 over the entire length of the ramps injection may vary.

Les collecteurs 10 d'admission du fluide principal A sont remplis, de façon dense, de particules 8 solides chimiquement neutres, de petite dimension. Chaque zone d'entrée 5a est recouverte d'une grille, non représentée.Fluid intake manifolds 10 main A are densely filled with particles 8 small, chemically neutral solids. Each entry area 5a is covered with a grid, not shown.

La présence de ces particules permet d'éviter l'explosion lors du mélange des composants du fluide principal, comme c'est le cas pour un fluide principal composé d'air et d'ortho-xylène ou d'air et de toluène.The presence of these particles allows avoid explosion when mixing components of the main fluid, as is the case for a fluid main compound of air and ortho-xylene or air and toluene.

Ainsi, le réacteur catalytique selon l'invention peut fonctionner avec une plus forte concentration d'ortho-xylène dans l'air sans courir aucun risque d'explosion ce qui permet d'augmenter de façon significative le rendement général de l'installation.So the catalytic reactor according to the invention can work with a stronger concentration of ortho-xylene in the air without running no risk of explosion which increases significantly the overall performance of the installation.

De plus, compte tenu du faible trajet des composants du fluide principal dans les particules, la perte de charge induite est faible.In addition, given the short journey of main fluid components in the particles the induced pressure drop is low.

Claims (18)

Réacteur catalytique, du type comprenant un faisceau de plaques (1) d'échange thermique délimitant un premier circuit comportant au moins une zone d'entrée (5a) et de sortie (5b) d'un fluide principal (A) formé d'au moins deux composants et un second circuit comportant au moins une zone d'entrée (6a) et de sortie (6b) d'un fluide secondaire, des moyens d'admission (10, 11a, 11b) et d'évacuation (14, 15) du fluide principal (A) et des moyens d'admission (16, 17 ; 20, 21) et d'évacuation (18, 19 ; 22, 23) du fluide secondaire B, caractérisé en ce que les moyens d'admission du fluide principal A dans le premier circuit sont formés, d'une part, par au moins un collecteur (10) rempli de particules (8) chimiquement neutres et couvrant ladite zone d'entrée (5a) et, d'autre part, par au moins une rampe d'injection (11a, 11b) pour chaque composant du fluide principal A, s'étendant sur toute la longueur du collecteur (10) et comportant au moins une rangée longitudinale d'orifices (13) débouchant dans le collecteur (10) et dirigés vers ladite zone d'entrée (5a).Catalytic reactor, of the type comprising a bundle of heat exchange plates (1) delimiting a first circuit comprising at least one fluid inlet (5a) and outlet (5b) area main (A) formed by at least two components and one second circuit with at least one entry area (6a) and outlet (6b) of a secondary fluid, inlet (10, 11a, 11b) and outlet (14, 15) the main fluid (A) and the intake means (16, 17; 20, 21) and evacuation (18, 19; 22, 23) of the secondary fluid B, characterized in that the means main fluid A inlet into the first circuit are formed, on the one hand, by at least one collector (10) filled with particles (8) chemically neutral and covering said entry area (5a) and, on the other hand, by at least one injection manifold (11a, 11b) for each component of the main fluid A, extending over the entire length of the manifold (10) and having at least one longitudinal row of holes (13) opening into the manifold (10) and directed towards said entry area (5a). Réacteur catalytique selon la revendication 1, caractérisé en ce que les moyens d'évacuation du fluide principal A du premier circuit sont formés par au moins un collecteur (14) couvrant ladite zone de sortie (5b) dudit fluide principal A.Catalytic reactor according to claim 1, characterized in that the means of evacuation of the main fluid A of the first circuit are formed by at least one collector (14) covering said zone of outlet (5b) of said main fluid A. Réacteur catalytique selon la revendication 1, caractérisé en ce que la circulation du fluide principal A et du fluide secondaire B dans les circuits correspondants est co-courante.Catalytic reactor according to claim 1, characterized in that the circulation of the fluid main A and secondary fluid B in the corresponding circuits is co-current. Réacteur catalytique selon la revendication 1, caractérisé en ce que la circulation du fluide principale A et du fluide secondaire B dans les circuits correspondants est à contre-courant. Catalytic reactor according to claim 1, characterized in that the circulation of the fluid main A and secondary fluid B in the corresponding circuits is against the current. Réacteur catalytique selon la revendication 1, caractérisé en ce que la circulation du fluide principale A et du fluide secondaire B dans les circuits correspondants est à courants croisés.Catalytic reactor according to claim 1, characterized in that the circulation of the fluid main A and secondary fluid B in the corresponding circuits are cross currents. Réacteur catalytique selon la revendication 1, caractérisé en ce que le premier circuit comporte plusieurs zones d'entrée (5a) et de sortie (6a) du fluide principal A et le second circuit comporte plusieurs zones d'entrée (5b) et de sortie (6b) du fluide secondaire B alternées respectivement avec lesdites zones d'entrée (5a) et de sortie (5b) du fluide principal A.Catalytic reactor according to claim 1, characterized in that the first circuit has several entry areas (5a) and outlet (6a) of the main fluid A and the second circuit has several entry (5b) and exit areas (6b) of the secondary fluid B alternately respectively with said inlet (5a) and outlet (5b) zones of the main fluid A. Réacteur catalytique selon la revendication 1, caractérisé en ce que le premier circuit comporte plusieurs zones d'entrée (5a) et de sortie (6a) du fluide principal A et le second circuit comporte plusieurs zones d'entrée (5b) et de sortie (6b) du fluide secondaire B alternées respectivement avec les zones d'entrée (5a) et de sortie (5b) du fluide principal A, les zones de sortie (6a) du fluide principal A et les zones de sortie (6b) du fluide secondaire B étant inversées par rapport aux zones d'entrée (5a) dudit fluide principal A et aux zones d'entrée (5b) dudit fluide secondaire B.Catalytic reactor according to claim 1, characterized in that the first circuit has several entry areas (5a) and outlet (6a) of the main fluid A and the second circuit has several entry (5b) and exit areas (6b) of the secondary fluid B alternately respectively with the entry (5a) and exit (5b) areas of the main fluid A, the fluid outlet zones (6a) main A and fluid outlet areas (6b) secondary B being inverted with respect to the zones inlet (5a) of said main fluid A and to the zones inlet (5b) of said secondary fluid B. Réacteur catalytique selon l'une quelconque des revendications 1 et 3 à 7, caractérisé en ce que les moyens d'admission du fluide principal A dans le premier circuit sont formés, pour chaque zone d'entrée (5a), d'une part, par un collecteur (10) rempli de particules (8) chimiquement neutres et couvrant la zone d'entrée (5a) correspondante et, d'autre part, par au moins une rampe d'injection (11a, 11b) pour chaque composant du fluide principal A s'étendant sur toute la longueur du collecteur (10) et comportant au moins une rangée longitudinale d'orifices (13) débouchant dans le collecteur (10) et dirigés vers ladite zone d'entrée (5a).Catalytic reactor according to one any of claims 1 and 3 to 7, characterized in that the main fluid intake means A in the first circuit are formed, for each zone inlet (5a), on the one hand, by a collector (10) filled with chemically neutral particles (8) and covering the corresponding entry area (5a) and, on the other hand, by at least one injection manifold (11a, 11b) for each component of the main fluid A extending over the entire length of the manifold (10) and having at least one longitudinal row of holes (13) opening into the manifold (10) and directed towards said entry area (5a). Réacteur catalytique selon l'une quelconque des revendications 1 et 3 à 7, caractérisé en ce que les moyens d'évacuation du fluide principal A sont formés par un collecteur (14) couvrant chaque zone de sortie (5b) du premier circuit.Catalytic reactor according to one any of claims 1 and 3 to 7, characterized in that the means for discharging the main fluid A are formed by a collector (14) covering each zone output (5b) of the first circuit. Réacteur catalytique selon l'une quelconque des revendications 1 et 3 à 7, caractérisé en ce que les moyens d'admission du fluide secondaire B dans le second circuit sont formés, pour chaque zone d'entrée (5b), par un collecteur (16) couvrant la zone d'entrée (5b) correspondante dudit fluide secondaire B.Catalytic reactor according to one any of claims 1 and 3 to 7, characterized in that the means for admitting the secondary fluid B in the second circuit are formed, for each zone inlet (5b), by a collector (16) covering the area inlet (5b) corresponding to said secondary fluid B. Réacteur catalytique selon l'une quelconque des revendications 1 et 3 à 7, caractérisé en ce que les moyens d'admission du fluide secondaire B dans le second circuit sont formés par un collecteur (20) couvrant l'ensemble des zones d'entrée (5b) dudit fluide secondaire B.Catalytic reactor according to one any of claims 1 and 3 to 7, characterized in that the means for admitting the secondary fluid B in the second circuit are formed by a collector (20) covering all of the entry areas (5b) of said secondary fluid B. Réacteur catalytique selon l'une quelconque des revendications 1 et 3 à 7, caractérisé en ce que les moyens d'évacuation du fluide secondaire B du second circuit sont formés, pour chaque zone de sortie (6b), par un collecteur (18) couvrant la zone de sortie (6b) correspondante dudit fluide secondaire B.Catalytic reactor according to one any of claims 1 and 3 to 7, characterized in that the means for discharging the secondary fluid B of the second circuit are formed, for each zone of outlet (6b), by a collector (18) covering the area of corresponding outlet (6b) of said secondary fluid B. Réacteur catalytique selon l'une quelconque des revendications 1 et 3 à 7, caractérisé en ce que les moyens d'évacuation du fluide secondaire B du second circuit sont formés par un collecteur (22) couvrant l'ensemble des zones de sortie (6b) dudit fluide secondaire B.Catalytic reactor according to one any of claims 1 and 3 to 7, characterized in that the means for discharging the fluid secondary B of the second circuit are formed by a collector (22) covering all of the exit zones (6b) of said secondary fluid B. Réacteur catalytique selon la revendication 1 ou 8, caractérisé en ce que les rampes d'injection (11a, 11b) sont disposées à l'intérieur du collecteur (10) correspondant. Catalytic reactor according to claim 1 or 8, characterized in that the ramps injection ports (11a, 11b) are arranged inside the corresponding collector (10). Réacteur catalytique selon la revendication 1 ou 8, caractérisé en ce que les rampes d'injection (11a, 11b) sont disposées à la périphérie du collecteur (10) correspondant.Catalytic reactor according to claim 1 or 8, characterized in that the ramps injection (11a, 11b) are arranged at the periphery of the corresponding collector (10). Réacteur catalytique selon la revendication 14 ou 15, caractérisé en ce que les rampes d'injection (11a, 11b) sont formées par des tubes de même diamètre ou de diamètres différents.Catalytic reactor according to claim 14 or 15, characterized in that the injection ramps (11a, 11b) are formed by tubes of the same diameter or of different diameters. Réacteur catalytique selon la revendication 1 ou 8, caractérisé en ce que les orifices (13) des rampes d'injection (11a, 11b) sont de même diamètre ou de diamètres différents.Catalytic reactor according to claim 1 or 8, characterized in that the orifices (13) of the injection ramps (11a, 11b) are of same diameter or different diameters. Réacteur catalytique selon la revendication 1 ou 8, caractérisé en ce que l'espacement des orifices (13) sur les rampes d'injection (11a, 11b) est constant ou variable.Catalytic reactor according to claim 1 or 8, characterized in that the spacing of the orifices (13) on the ramps injection (11a, 11b) is constant or variable.
EP19980400504 1997-03-17 1998-03-03 Plate-type reactor for catalytic reaction Expired - Lifetime EP0865818B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9703206A FR2760656B1 (en) 1997-03-17 1997-03-17 CATALYTIC PLATE REACTOR
FR9703206 1997-03-17

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EP0865818A1 true EP0865818A1 (en) 1998-09-23
EP0865818B1 EP0865818B1 (en) 2002-02-06

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DE (1) DE69803708D1 (en)
FR (1) FR2760656B1 (en)
WO (1) WO1998041318A1 (en)

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Publication number Priority date Publication date Assignee Title
WO2006042015A1 (en) * 2004-10-07 2006-04-20 Brooks Automation, Inc. Efficient heat exchanger for refrigeration process

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US3860065A (en) * 1970-04-08 1975-01-14 Trane Co Distributor for plate type heat exchanger having side headers
JPS56166937A (en) * 1980-05-27 1981-12-22 Osaka Gas Co Ltd Reaction apparatus with plate type heat exchanger
EP0292736A2 (en) * 1987-05-29 1988-11-30 Linde Aktiengesellschaft Gas feeding device for bulk solids
EP0529329A2 (en) * 1991-08-09 1993-03-03 Ishikawajima-Harima Heavy Industries Co., Ltd. Plate type shift converter
US5584341A (en) * 1994-11-28 1996-12-17 Packinox Plate bundle for a heat exchanger

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Publication number Priority date Publication date Assignee Title
US3860065A (en) * 1970-04-08 1975-01-14 Trane Co Distributor for plate type heat exchanger having side headers
JPS56166937A (en) * 1980-05-27 1981-12-22 Osaka Gas Co Ltd Reaction apparatus with plate type heat exchanger
EP0292736A2 (en) * 1987-05-29 1988-11-30 Linde Aktiengesellschaft Gas feeding device for bulk solids
EP0529329A2 (en) * 1991-08-09 1993-03-03 Ishikawajima-Harima Heavy Industries Co., Ltd. Plate type shift converter
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006042015A1 (en) * 2004-10-07 2006-04-20 Brooks Automation, Inc. Efficient heat exchanger for refrigeration process
US7490483B2 (en) 2004-10-07 2009-02-17 Brooks Automation, Inc. Efficient heat exchanger for refrigeration process
CN101084409B (en) * 2004-10-07 2011-03-23 布鲁克斯自动化有限公司 Efficient heat exchanger for refrigeration process
US8091381B2 (en) 2004-10-07 2012-01-10 Brooks Automation, Inc. Efficient heat exchanger for refrigeration process

Also Published As

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FR2760656A1 (en) 1998-09-18
DE69803708D1 (en) 2002-03-21
FR2760656B1 (en) 1999-06-04
WO1998041318A1 (en) 1998-09-24
EP0865818B1 (en) 2002-02-06

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